Table 2 Intra-rater and inter-rater reliability of paraspinal muscle parameters using intraclass correlation coeffecient
Measurements | Intra-rater ICC (95%CI) | Inter-rater ICC (95%CI) |
|---|---|---|
Multifidus muscle CSA | 0.901 (0.762–0.961) | 0.865 (0.793–0.910) |
Multifidus muscle attenuation | 0.924 (0.816–0.970) | 0.910 (0.874–0.936) |
Erector spinae muscle CSA | 0.885 (0.726–0.954) | 0.849 (0.791–0.891) |
Erector spinae muscle attenuation | 0.916 (0.798–0.967) | 0.914 (0.879–0.939) |
Psoas major muscle CSA | 0.962 (0.906–0.985) | 0.952 (0.921–0.969) |
Psoas major muscle attenuation | 0.977 (0.942–0.991) | 0.957 (0.938–0.970) |
Vertebral CSA | 0.934 (0.788–0.977) | 0.921 (0.827–0.957) |